TYS (Knoxville) to DEN (Denver) flights arrive on time 85% of the time. The most reliable airline on this route is Southwest Airlines at 100%. The average delay is 73 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated August 2026.TYS → DEN
TYS (Knoxville) to DEN (Denver)
TYS → DEN on-time performance by month
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JanFebMarAprMayJunJulAugSepOctNovDec
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This route is usually on time. About 85% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Southwest Airlines is significantly more reliable on this route at 100% on time vs Frontier Airlines at 71%.
Airline Comparison
Southwest Airlines leads at 100% on time; Frontier Airlines trails at 71%.
Accurate?
Good to know
Departing from TYS
78% on timeExpect ~19 min sitting on the taxiway after your gate pushes back. TYS has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at DEN
79% on timeWhen flights into DEN are late, the average delay is 69 minutes. Build buffer if you have ground plans.
If connecting at DEN: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Southwest Airlines owes you — refund rights, action plan, complaint email. Free.
Flying out of TYS? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated August 2026. Source: Bureau of Transportation Statistics.